Collapsible carton



' june' 23, 1942. 1' A; SUNDERHAUF ETAL COLLAPSIBLE CARTON Filed Oct. 6 1959 2 Sheets-Sheet l INVENTORS atented June 23 i942 attests, cameraman crop Frederick A. Sunderliani, Rutherford, N. H and Frank W. Broderick, New Brighton, N. E, assignors to Reynolds ltlietais Company, Rlcfih -mond, Va, a corporation oi Delaware Application @ctober 6, 1939, Serial No. 298,1?29 4 @laims. (@i. flit-=44) assembly into a strong, stable, attractive carton which is rigid enough to ads quately protect articles packed therein the food packer or other Cartons embodying our invention-are particu-,

larly satisfactory when made, from cardboard covered with metal foil, particularly aluminum foil;

Heretofore, a variety of cartons have been suggested but none has combined all of the characteristics embodied in. our invention, "namely, economy and simplicity of manufacture, flat packing, ease of assembly, strength and rigidity when assembled. 7

Therefore, it is an object of our invention to produce from the single blank, formed by die,- cut and die-scoring operations, a flat collapsible carton which may be later'assem'bledin a strong,

rigid and attractive assembly.

It is a further object of our invention to produce acarton, the sides and top of which will be formed from a single piece and which, when assembled, are of a rounded configuration, the said rounded top member being held in shape by the end members of the carton.

It is a further object of our invention-to pro- Fig.6; I

duce .a carton, from a simple one piece die-cut and die-scored blank, economically, with hinged dividing panels for the interior of the carton formed from material obtained centrally ofthe blank, with the elements of the carton so arranged that it is possible to inspect the merchandise within the carton. I

With these and other objects in view, our invention consists in the construction and novel combination and arrangement of parts, hereinafter fully described, and illustrated in the accompanying drawings in reference to present em- Fig. 3 is similar in pi 2, with on. side of the carton assembled;

Fig. i issimilar to Fig. 2, but illustrating a carton fully assembled;

Fig. 5 illustrates a stack of cartons similar to the carton illustrated in Fig. l, but said cartons being collapsed flat for shipping;

Fig, 6 is a plan view of a one piece die-cut, die scored blankadapted to'produce a carton embodying an alternate form of our invention;

Fig. 7 is a perspective of the blank illustrated in Fig. 6, partially folded, but collapsed fiat" for shipping purposes and adapted for easy assembly later;

Fig. 8 is a perspective of a carton partially assembled, formed from the blank illustrated in Fig. 9 is a perspective of the carton illustrated in Fig. 8 except that the same is fully assembled; Fig. 10 is a cross section taken along the line it-ltl of Fig. 9, and I Fig. 11 is a cross section of the cartons stock illustrating alayer of cardboard surfaced on both sides with layers of aluminum foil.

Referring to Figs. 1-5, a carton it, embodying one form of our invention, is formed from. a one piece integral blank H, by die-cutting and die-scoring operations, and comprises a bottom panel member M, a top'panel member 16, adapted to be shipped flat and further adapted to be 4) for the carton l0, bottom overlapping bodiments thereof, it being understood that various changes in the form, proportion and minor details in the construction; within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

' In the drawings Fig. 1 illustrates a plan view I of a one piece die-cut, die-scored blank suitable for the, production of a carton embodying one form of our invention;

Fig. 2 is a perspective view of the carton, partially assembled, formed from the blank shown in Fig.

ving and spacing members 26, top bridgin panel members l8 which are provided with lock= ing tabs 20 adapted to cooperate with. looking slots 22, carton end members 24, bottom bridge Fig. 5, with curved top member 16 lying flat and with both end members lying flat, one folded inwardly and upwardly and the other folded downwardly and outwardly, this being because of the parallel link formation of the members. It will be observed that bottom member I4 is hingedly and swlngably connected to bottom bridging and spacing members 26 which will likewise connect to end members 24, which latter are likewise connected to top bridging and spacing member 28, which in turn will connect to the ends of top portion l6; this being possibly be cause of the separating score lines, indicated generally as at 32.

, It will also be observed that the top bridging and spacing members 28 are shorter than the bottom bridging and spacing members 26 and lie within a relatively flattened portion of the curved top member l6, when the carton is assembled.

When assembling the box, the bridge members will turn inwardly, and the overlapping bottom members l8 are tensioned inwardly flatwise and locked in position in bottom member l4, thereby placing top memberunder tension and forcing it to conform to the shape of. end members 24, and also fixing the bridging and spacing mem-. bers 26 and 28 in place so that they automatically space the end members 24 inwardly from the outer ends of the carton, indicated as at 34. This gives a strong and stable construction, as the members 26 and 28 are folded inwardly over their respective top and bottom members, giving a double thickness atsuch points of fold, thus giving rigidity to the carton. An opening 38 may be provided in top member it, which opening may be attractively provided with a bridge member 38, if desired. This permits an inspection of the goods within the carton l0, if desired, and where such an opening is utilized, the entire carton may be placed in Cellophane or some other transparent wrapping medium.

Referring to Figs. 6-10, instead of having the form of opening illustrated in Figs, 1-4, we may provide top member IS with two hinged panel portions 40, hinged to a longitudinally running strip member 42, the two hinged panel portions 40 being adapted to be folded downwardly in the members positioned inside of the outer limits of Y the said top and bottom members, bridging and stiffening panels connecting the top and bottom members to the end members, locking means to lock the carton in assembled position and a further panel hinged to said top member and extending longitudinally of said carton, said panel being adapted to be folded downwardly and inwardly into engagement with said bottom member to strengthen said carton against outside pressure when in assembled condition.

carton, as best shown in Figs. 9 and 10, thereby affording dividing panels for the carton.

In Fig. 11' there is illustrated a layer of cardboard 43 lined on each side with aluminum metal foil as at 44.

It is obvious that variations may be practised in respect to our invention above described, and therefore reference should be had to the appended claims which define the scope of our invention.

Having described our invention, claimed is:

1. A flat, collapsible carton produced by a onepiece die-cut and die-scored blank, which includes a bottom member, a one-piece top member forming the top and sides of the carton, end members positioned inside of the outer limits of what is now 3. A flat, collapsible cartonproduced by a onepiece die-cut and die-scored blank, which includes a bottom member, a one-piece top member forming the top and sides of the carton, end members positioned inside of the outer limits of the said top and bottom members, bridging and stiffening panels connecting the top and bottom members, to the end members, locking means to lock the carton in assembled position, and further panels hinged to said top member and adapted to be folded downwardly and inwardly into engagement with said bottom member to strengthen said carton against outside pressure when in assembled condition, said panels separating said carton into a plurality of compartments extending longitudinally thereof.

4, A flat, collapsible carton produced by a one.-' piece die-cut and die-scored blank, which includes a bottom member, a one-piece top member forming the top and sides of the carton, end

' members positioned inside of the outer limits of the'said top and bottom members, bridging and the said top and bottom members, bridging and stiffening panels connecting the top and bottom members to the end members, locking means to lock the carton in assembled position, and further panels hinged to said top member and adapted to be folded downwardly and inwardly into engagement with said bottom member to strengthen said carton against outside pressure when in assembled condition, said panels also bearing against said end members and limiting inward movement thereof.

FREDERICK A. SUNDERHAUF. FRANK W. BRODERICK. 

